A cermet insert having a structure composed of a hard phase and a binding phase and, as a sintered body composition, containing Ti, Nb andor Ta, and W in a total amount of Ti in terms of carbonitride, Nb andor Ta in terms of carbide and W in terms of carbide of 70 to 95 wt. The methods include providing a plurality of cameras with different orientations with respect to the object’s flight path. The material properties of the finite elements are specified to have a particular symmetry and a material property matrix k is calculated based on the relationship {f}=k{x} and the specified symmetry. If necessary to maintain less than a predetermined ripple on total DC power drawn from a source of the DC power by the radar system, the power control adjusts a duration of empty dwell periods within the dwell schedule for one or more of the arrays. A wideband stage interface converts the MPE signals into matrix transport format signals for cross-connection in a wideband center stage matrix. The height of the pole and disc is adjustable.